hard soft acid base theory Flashcards
borderline bases
NO2 - SO3 - N3 - N2 SCN- C5H5N Cl- Br-
Borderline acids
Fe2+ Co2+ Ni2+ Cu2+ Pb2+ Bi3+ Sb3+ Zn2+
pph3
soft
BAL
soft
EDTA4-
hard
S2O3 2-
soft base
R2S
soft base
C2H4
soft base
R3P
soft base
Scn-
soft base
sulphur is donor
I-
soft base
C=O
soft base
C=N -
soft base
R-
soft base
H-
soft base
Br-
borderline base
Cl-
borderline base
SCN-
borderline base
NO2 -
borderline base
SO3 -
Borderline base
N3 -
Borderline base
N2
borderline base
C5H5N
pyridine
borderline base
CH3COO-
hard base
ClO4 -
hard base
PO4 3-
hard base
SO4 -
hard base
O2-
hard base
CO3 2-
hard base
NH3
hard base
H2O
hard base
OH-
hard base
F -
hard base
I+
soft acid
Br+
soft acid
BH3
soft acid
Hg2+
soft acid
ir+
soft acid
Pt2+
soft acid
Pd 2+
soft acid
Hg+
soft acid
Au+
soft acid
Ag+
soft acid
Cu+
soft acid
Ni0
soft acid
Fe0
soft acid
Fe2+
borderline acid
Co2+
borderline acid
Cu2+
borderline acid
Ni2+
borderline acid
Zn2+
borderline acid
Bi3+
borderline acid
sb3+
borderline acid
Pb2+
borderline acid
Li+
hard acid
H+
hard acid
Na+
hard acid
K+
hard acid
Mg2+
hard acid
Ca2+
hard acid
Al3+
hard acid
NH4+
hard acid
Ti4+
hard acid
Cr2+
hard acid
Cr3+
hard acid
Fe3+
hard acid
Co3+
hard acid
Mn2+
hard acid